6400 Air Cooled

Product Information

Product Name: 6400 Air Cooled

Operator Manual: MM430

Revision: 07

Manufacturer: TENNANT

Published: 9-02

Contents: Safety Precautions, Operation, Operator
Responsibility, Machine Components, Symbol Definitions, Controls
and Instruments, Operation of Controls, How the Machine Works,
Pre-Operation Checklist, Sweeping and Brush Information

California Proposition 65 Warning: Engine exhaust from this
product contains chemicals known to the State of California to
cause cancer, birth defects, or other reproductive harm.

Copyright: E 1996 – 2000, 2001, 2002 TENNANT, Printed in
U.S.A.

Product Usage Instructions

Operator Responsibility

• Read the manual completely and understand the machine before
  operating or servicing it.

• Operate the machine with reasonable care.

• Maintain the machine regularly as per the maintenance
  instructions provided.

• Maintain the machine with TENNANT supplied or approved
  parts.

Machine Components

• Safety Precautions
• Operation
• Symbol Definitions
• Controls and Instruments
• Operation of Controls
• How the Machine Works
• Pre-Operation Checklist
• Sweeping and Brush Information

Pre-Operation Checklist

Before starting the machine, perform the following checks:

1. Inspect the machine for any visible damage.
2. Ensure all safety features are in working condition.
3. Check the fuel level and refill if necessary.
4. Inspect and clean the brushes and filters.
5. Check the oil level and top up if required.
6. Ensure all controls and instruments are functioning
   properly.

Starting the Machine

1. Ensure all safety precautions are followed.
2. Turn the ignition switch to the ON position.
3. If applicable, adjust the engine choke knob.
4. Turn the key to start the engine.
5. Allow the engine to warm up for a few minutes.

Sweeping and Brush Information

Refer to the manual for detailed instructions on how to operate
the sweeping and brush functions of the machine.

6400
Air Cooled Operator Manual
MM430
Rev. 07
mm430

This manual is furnished with each new TENNANT Model 6400. It provides necessary operating and preventive maintenance instructions. Read this manual completely and understand the machine before operating or servicing it. This machine will provide excellent service. However, the best results will be obtained at minimum costs if:
D The machine is operated with reasonable care. D The machine is maintained regularly — per the maintenance instructions provided. D The machine is maintained with TENNANT supplied or approved parts.
Manual Number — MM430 Revision: 07 Published: 9–02
CALIFORNIA PROPOSITION 65 WARNING:
Engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Copyright E 1996 — 2000, 2001, 2002 TENNANT, Printed in U.S.A.

CONTENTS

CONTENTS

Page SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . 3 OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
OPERATOR RESPONSIBILITY . . . . . . . . . . . 6 MACHINE COMPONENTS . . . . . . . . . . . . . . . 7 SYMBOL DEFINITIONS . . . . . . . . . . . . . . . . . . 8 CONTROLS AND INSTRUMENTS . . . . . . . 10 OPERATION OF CONTROLS . . . . . . . . . . . 11
DIRECTIONAL PEDAL . . . . . . . . . . . . . . . 11 BRAKE PEDAL . . . . . . . . . . . . . . . . . . . . . 12 PARKING BRAKE PEDAL . . . . . . . . . . . . 12 SEAT SUPPORT RELEASE LEVER . . . 12 THROTTLE LEVER . . . . . . . . . . . . . . . . . . 13 HOPPER LEVER . . . . . . . . . . . . . . . . . . . . 13 HOPPER DOOR LEVER . . . . . . . . . . . . . 13 MAIN BRUSH LEVER . . . . . . . . . . . . . . . . 14 MAIN BRUSH DOWN
PRESSURE KNOB . . . . . . . . . . . . . . . 14 VACUUM AND FILTER
SHAKER LEVER . . . . . . . . . . . . . . . . . 14 CHARGING SYSTEM LIGHT . . . . . . . . . 15 ENGINE OIL PRESSURE LIGHT . . . . . . 15 ENGINE TEMPERATURE LIGHT . . . . . . 15 HOPPER TEMPERATURE LIGHT —
THERMO SENTRYt . . . . . . . . . . . . . 16 LPG FUEL LEVEL LOW LIGHT . . . . . . . 16 CLOGGED FILTER LIGHT (OPTION) . . 17 HOPPER DOOR CLOSED
LIGHT (OPTION) . . . . . . . . . . . . . . . . . 17 HYDRAULIC FILTER BYPASS
LIGHT (OPTION) . . . . . . . . . . . . . . . . . 18 FUEL LEVEL GAUGE . . . . . . . . . . . . . . . . 18 ENGINE CHOKE KNOB . . . . . . . . . . . . . . 18 STEERING WHEEL . . . . . . . . . . . . . . . . . 19 HOURMETER . . . . . . . . . . . . . . . . . . . . . . 19 STEERING WHEEL TILT HANDLE . . . . 19 IGNITION SWITCH . . . . . . . . . . . . . . . . . . 19 HORN BUTTON . . . . . . . . . . . . . . . . . . . . . 20 SIDE BRUSH LEVER . . . . . . . . . . . . . . . . 20 OPERATING LIGHTS
SWITCH (OPTION) . . . . . . . . . . . . . . . 20 OPERATING/HAZARD LIGHTS
SWITCH (OPTION) . . . . . . . . . . . . . . . 20 SIDE BRUSH DOWN
PRESSURE KNOB . . . . . . . . . . . . . . . 21 CIRCUIT BREAKERS . . . . . . . . . . . . . . . . 21 OPERATOR SEAT . . . . . . . . . . . . . . . . . . . 22 DELUXE SUSPENSION
SEAT (OPTION) . . . . . . . . . . . . . . . . . . 22 HOPPER SUPPORT BAR . . . . . . . . . . . . 23 HOW THE MACHINE WORKS . . . . . . . . . . . 24 PRE- OPERATION CHECKLIST . . . . . . . . . . 24 CHANGING AN LPG FUEL TANK . . . . . . . . 26 STARTING THE MACHINE . . . . . . . . . . . . . . 28 SWEEPING AND BRUSH INFORMATION . 30

Page SWEEPING . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 STOP SWEEPING . . . . . . . . . . . . . . . . . . . . . 33 EMPTYING THE HOPPER . . . . . . . . . . . . . . 34 STOP THE MACHINE . . . . . . . . . . . . . . . . . . 36 POST-OPERATION CHECKLIST . . . . . . . . . 38 ENGAGING HOPPER SUPPORT BAR . . . 39 DISENGAGING HOPPER SUPPORT BAR 41 OPERATION ON INCLINES . . . . . . . . . . . . . 42 OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
VACUUM WAND . . . . . . . . . . . . . . . . . . . . 43 MACHINE TROUBLESHOOTING . . . . . . . . 45 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . 46 MAINTENANCE CHART . . . . . . . . . . . . . . . . 46 LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . 48
ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 REAR WHEEL SUPPORT . . . . . . . . . . . . 48 STEERING CYLINDER . . . . . . . . . . . . . . 48 FRONT WHEEL BEARINGS . . . . . . . . . . 49 HOPPER LIFT ARM PIVOTS . . . . . . . . . 49 HYDRAULICS . . . . . . . . . . . . . . . . . . . . . . . . . 50 HYDRAULIC FLUID RESERVOIR . . . . . 50 HYDRAULIC FLUID . . . . . . . . . . . . . . . . . 50 HYDRAULIC HOSES . . . . . . . . . . . . . . . . 51 PROPELLING MOTOR . . . . . . . . . . . . . . . 51 ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 AIR FILTER . . . . . . . . . . . . . . . . . . . . . . . . . 52 FUEL FILTER . . . . . . . . . . . . . . . . . . . . . . . 53 CARBURETOR . . . . . . . . . . . . . . . . . . . . . 53 SPARK PLUGS . . . . . . . . . . . . . . . . . . . . . 53 ELECTRICAL . . . . . . . . . . . . . . . . . . . . . . . . . . 54 BATTERY . . . . . . . . . . . . . . . . . . . . . . . . . . 54 BELTS AND CHAINS . . . . . . . . . . . . . . . . . . . 54 VACUUM FAN BELT . . . . . . . . . . . . . . . . . 54 STATIC DRAG CHAIN . . . . . . . . . . . . . . . 54 DEBRIS HOPPER . . . . . . . . . . . . . . . . . . . . . . 55 HOPPER DUST FILTER . . . . . . . . . . . . . . 55 REMOVING HOPPER DUST FILTER . . 55 BRUSHES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 MAIN BRUSH . . . . . . . . . . . . . . . . . . . . . . . 57
REPLACING MAIN BRUSH . . . . . . . . 57 CHECKING AND ADJUSTING
MAIN BRUSH PATTERN . . . . . . . 58 SIDE BRUSH . . . . . . . . . . . . . . . . . . . . . . . 60
REPLACING SIDE BRUSH . . . . . . . . 60 SIDE BRUSH GUARD . . . . . . . . . . . . 61 SIDE BRUSH PIVOT . . . . . . . . . . . . . . 61

6400 MM430 (6–00)

1

CONTENTS
Page SKIRTS AND SEALS . . . . . . . . . . . . . . . . . . . 62
HOPPER LIP SKIRT . . . . . . . . . . . . . . . . . 62 HOPPER SIDE SKIRT . . . . . . . . . . . . . . . 62 BRUSH DOOR SKIRTS . . . . . . . . . . . . . . 62 REAR SKIRTS . . . . . . . . . . . . . . . . . . . . . . 63 SIDE BRUSH DUST CONTROL
SKIRTS (OPTION) . . . . . . . . . . . . . . . . 63 BRUSH DOOR SEALS . . . . . . . . . . . . . . . 63 HOPPER SEALS . . . . . . . . . . . . . . . . . . . . 63 HOPPER ACCESS DOOR SEAL . . . . . . 64 HOPPER DOOR SEALS . . . . . . . . . . . . . 64 VACUUM FAN SEAL . . . . . . . . . . . . . . . . . 64 BRAKES AND TIRES . . . . . . . . . . . . . . . . . . . 65 BRAKES . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 TIRES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 REAR WHEEL . . . . . . . . . . . . . . . . . . . . . . 65 PUSHING, TOWING, AND TRANSPORTING THE MACHINE . . . . 66 PUSHING OR TOWING THE MACHINE 66 TRANSPORTING THE MACHINE . . . . 67 MACHINE JACKING . . . . . . . . . . . . . . . . . . . . 69 STORING MACHINE . . . . . . . . . . . . . . . . . . . 69 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . 70 GENERAL MACHINE PERFORMANCE . . . 70 POWER TYPE . . . . . . . . . . . . . . . . . . . . . . . . . 71 STEERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 HYDRAULIC SYSTEM . . . . . . . . . . . . . . . . . . 71 MACHINE DIMENSIONS . . . . . . . . . . . . . . . . 72 INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

2

6400 MM430 (6–00)

SAFETY PRECAUTIONS
SAFETY PRECAUTIONS

The following precautions are used throughout this manual as indicated in their description:
WARNING: To warn of hazards or unsafe practices that could result in severe personal injury or death.
FOR SAFETY: To identify actions that must be followed for safe operation of equipment.
The machine is suited to sweep disposable debris. Do not use the machine other than described in this Operator Manual. The machine is not designed for use on public roads.
The following information signals potentially dangerous conditions to the operator or equipment:
WARNING: Engine emits toxic gases. Severe respiratory damage or asphyxiation can result. Provide adequate ventilation. Consult with your regulatory authorities for exposure limits. Keep engine properly tuned.
WARNING: Lift arm pinch point. Stay clear of hopper lift arms.
WARNING: Raised hopper may fall. Engage hopper support bar.
WARNING: Moving belt and fan. Keep away.
FOR SAFETY:
1. Do not operate machine: — Unless trained and authorized. — Unless operation manual is read and understood. — In flammable or explosive areas unless designed for use in those areas. — In areas with possible falling objects unless equipped with overhead guard.

3. When starting machine: — Keep foot on brake and directional pedal in neutral.
4. When using machine: — Use brakes to stop machine. — Go slowly on inclines and slippery surfaces. — Use care when reversing machine. — Move machine with care if hopper is raised. — Make sure adequate clearance is available before raising hopper. — Do not carry passengers on machine. — Always follow safety and traffic rules. — Report machine damage or faulty operation immediately.
5. Before leaving or servicing machine: — Stop on level surface. — Set parking brake. — Turn off machine and remove key.
6. When servicing machine: — Avoid moving parts. Do not wear loose jackets, shirts, or sleeves. — Block machine tires before jacking up machine. — Jack up machine at designated locations only. Block machine up with jack stands. — Use hoist or jack that will support the weight of the machine. — Wear eye and ear protection if using pressurized air or water. — Disconnect battery connections before working on machine. — Avoid contact with battery acid. — Avoid contact with hot engine coolant. — Allow engine to cool. — Keep flames and sparks away from fuel system service area. Keep area well ventilated. — Use cardboard to locate leaking hydraulic fluid under pressure. — Use Tennant supplied or approved replacement parts.

2. Before starting machine: — Check for fuel leaks. — Keep sparks and open flame away from refueling area. — Make sure all safety devices are in place and operate properly. — Check brakes and steering for proper operation.

6400 MM430 (9–02)

3

SAFETY PRECAUTIONS
7. When loading/unloading machine onto/off truck or trailer: — Turn off machine. — Use truck or trailer that will support the weight of the machine. — Use winch. Do not drive the machine onto/off the truck or trailer unless the load height is 380 mm (15 in) or less from the ground. — Set parking brake after machine is loaded. — Block machine tires. — Tie machine down to truck or trailer.

4

6400 MM430 (9–02)

The following safety labels are mounted on the machine in the locations indicated. If these or any labels become damaged or illegible, install a new label in its place.
EMISSIONS LABEL — LOCATED ON THE SIDE OF THE OPERATOR COMPARTMENT.

SAFETY PRECAUTIONS
FOR SAFETY LABEL — LOCATED ON THE SIDE OF THE OPERATOR COMPARTMENT.

FAN AND BELT LABEL — LOCATED ON THE VACUUM FAN HOUSING AND BELT SHROUD.
350159

HOPPER SUPPORT LABEL — LOCATED ON BOTH LIFT ARMS AND THE HOPPER SUPPORT BAR.
6400 MM430 (12–96)

HOPPER LIFT ARMS LABEL — LOCATED ON BOTH LIFT ARMS.
5

OPERATION

OPERATION

OPERATOR RESPONSIBILITY

– The operator’s responsibility is to take care of the daily maintenance and checkups of the machine, to keep it in good working condition. The operator must inform the service mechanic or supervisor when the required maintenance intervals occur as stated in the MAINTENANCE section of this manual.

– Read this manual carefully before operating the machine. View the operation video supplied with the machine.

FOR SAFETY: Do not operate machine, unless operation manual is read and understood.

– Check the machine for shipping damage. Check to make sure the machine is complete per shipping instructions.

– Keep your machine regularly maintained by

following the maintenance information in this

07324

manual. We recommend taking advantage of

a regularly scheduled service contract from

your Tennant representative.

– Order parts and supplies directly from your authorized Tennant representative. Use the parts manual provided when ordering parts.

– After the first 50 hours of operation, follow the recommended procedures stated in the MAINTENANCE CHART.

6

6400 MM430 (9–96)

MACHINE COMPONENTS D

A
B C

OPERATION
H

E
F
A. Operator seat B. Steering wheel C. Instrument panel D. Hopper cover E. Side brush F. Hopper access door G. Brush door H. Seat support

G
350159

6400 MM430 (9–96)

7

OPERATION
SYMBOL DEFINITIONS These symbols identify controls, displays, and features on the machine:
Filter shaker Vacuum fan on Vacuum fan off Fast engine speed Idle engine speed Hopper down Hopper up Hopper door open Hopper door close Main brush down and on Main brush up and off Battery charging system Engine oil pressure Engine water temperature 8

Thermo Sentryt LPG fuel low Clogged dust filter Hopper door closed Hydraulic filter clogged Hourmeter Steering wheel tilt Off On Start Horn Operating lights Hazard light Side brush down and on
6400 MM430 (9–96)

Side brush up and off Variable pressure Side brush pressure Circuit breaker #1 Circuit breaker #2

OPERATION
Circuit breaker #3 Circuit breaker #4 Circuit breaker #5

6400 MM430 (9–96)

9

OPERATION
CONTROLS AND INSTRUMENTS

J G
F E
D

I

K

OP V

L
M H
N

QS RT

WX Y

AC B

C A

A. Brake pedal B. Parking brake pedal C. Directional pedal D. Seat support release lever E. Hopper lever F. Hopper door lever G. Main brush lever H. Main brush down pressure knob I. Throttle lever J. Vacuum and filter shaker lever K. Charging system light L. Engine oil pressure light M. Engine temperature light N. Hopper temperature light — Thermo Sentryt O. LPG fuel level low light P. Clogged filter light (option) Q. Hopper door closed light (option) R. Hydraulic filter bypass light (option) S. Fuel level gauge T. Engine choke knob (gasoline only) U. Steering wheel V. Hourmeter W. Steering wheel tilt handle X. Ignition switch Y. Horn button Z. Side brush lever AA.Operating/hazard light switch (option) AB.Side brush down pressure knob AC.Circuit breakers
10

U AA Z AB
350012
6400 MM430 (6–99)

OPERATION OF CONTROLS DIRECTIONAL PEDAL The directional pedal controls the direction of travel and the propelling speed of the machine. You change the speed of the machine with the pressure of your foot on the pedal; the harder you press, the faster the machine travels. Forward: Press the top of the directional pedal with the toe of your foot.
Reverse: Press the bottom of the directional pedal with the heel of your foot.
Neutral: Take your foot off the directional pedal and it will return to the Neutral position.
6400 MM430 (9–96)

OPERATION
07790 07791 07792
11

OPERATION
BRAKE PEDAL The brake pedal stops the machine. Stop: Take your foot off the directional pedal and let it return to the Neutral position. Step on the brake pedal.
PARKING BRAKE PEDAL The parking brake pedal sets and releases the front wheel brakes. Set: Press on the brake pedal as far as possible, then press on the parking brake pedal with the toe portion of your foot to lock the parking brake pedal in place.
FOR SAFETY: Before leaving or servicing machine, stop on level surface, set parking brake, turn off machine, and remove key.
Release: Press on the brake pedal to unlock the parking brake pedal.
SEAT SUPPORT RELEASE LEVER The seat support lever releases and locks the seat support. Release: Pull the lever back and lift the seat support. Lock: Close the seat support and release the lever to lock the support in place.

12

6400 MM430 (9–96)

THROTTLE LEVER The throttle lever controls the engine speed. Fast: Push the throttle lever all the way forward. Idle: Pull the throttle lever all the way back. NOTE: Only operate the throttle all the way open in the Fast engine speed position when sweeping. Operating the throttle at any other position will reduce performance. Pull the throttle lever all the way back before turning the machine off.
HOPPER LEVER The hopper lever raises and lowers the hopper. Hopper up: Pull the hopper lever into the Hopper up position. Hold: Release the hopper lever into the middle position. Hopper down: Push the hopper lever into the Hopper down position.
HOPPER DOOR LEVER The hopper door lever opens and closes the hopper door. Open the hopper door before sweeping. Close the hopper door before emptying the hopper to control debris and dust. Hopper door open: Push the hopper door lever forward into the Hopper door open position. Hopper door close: Pull the hopper door lever back into the Hopper door close position for a few seconds until the hopper door is closed. NOTE: If the machine is equipped with the hopper door closed light option, the light will come on when the hopper door is closed.
6400 MM430 (12–96)

OPERATION
13

OPERATION
MAIN BRUSH LEVER The main brush lever controls the position and rotation of the main brush.
Main brush down and on: Pull the lever back and to the right into the Main brush down and on position against the main brush down pressure knob. The brush will automatically start rotating.
Main brush up and off: Pull the lever back and to the left into the Main brush up and off position.
MAIN BRUSH DOWN PRESSURE KNOB The main brush down pressure knob changes the amount of contact the main brush has with the surface being swept.
Increase: Loosen the main brush down pressure knob. Move the knob forward, away from the operator, and retighten it.
Decrease: Loosen the main brush down pressure knob. Move the knob back, towards the operator, and retighten it.
VACUUM AND FILTER SHAKER LEVER The vacuum and filter shaker lever controls the vacuum fan duct and the filter shaker. The vacuum fan duct should be on when sweeping dry debris. The vacuum fan duct should be off when sweeping wet debris.
Vacuum Fan on: Turn the lever to the left into the Vacuum Fan on position.
Vacuum Fan off: Turn the lever to the right into the Vacuum Fan off position.
Start filter shaker: Place the lever in the Filter shaker position for 30 seconds.
Note: Excessive heat in the hopper will cause the Thermo Sentryt to move the vacuum and filter shaker lever to the Vacuum fan off position. It will also make the hopper temperature light come on. If this happens, stop the machine, eliminate the source of the heat, and return the lever to the Vacuum fan on position.
14

6400 MM430 (6–99)

CHARGING SYSTEM LIGHT The charging system light comes on when the alternator is not operating within normal range; 13.5 to 14.5 V. If the light comes on, stop operating the machine. Locate the problem and have it corrected.
ENGINE OIL PRESSURE LIGHT The engine oil pressure light comes on when the engine oil pressure falls below 40 kPa (5 psi). If the light comes on, stop operating the machine. Locate the problem and have it corrected.
ENGINE TEMPERATURE LIGHT The engine temperature light comes on when the engine is overheating. If the light comes on, stop operating the machine. Locate the problem and have it corrected.

OPERATION

6400 MM430 (9–96)

15

OPERATION
HOPPER TEMPERATURE LIGHT — THERMO SENTRYt The hopper temperature light comes on when the Thermo Sentryt senses that there is excessive heat in the hopper, possibly from a fire. The Thermo Sentryt will also move the vacuum and filter shaker lever to the Vacuum fan off position. If this happens, stop the machine, eliminate the source of the heat, and return the lever to the Vacuum fan on position.
LPG FUEL LEVEL LOW LIGHT The LPG fuel level low light comes on when the LPG fuel tank is almost empty. The LPG fuel tank has 10 to 15 minutes of fuel remaining when the level light comes on.

16

6400 MM430 (6–00)

CLOGGED FILTER LIGHT (OPTION) The clogged filter light comes on when the hopper dust filter is clogged.
To clean the filter, hold the vacuum and filter shaker lever in the Filter shaker position. If the clogged filter light remains lit, manually clean the hopper dust filter. See HOPPER DUST FILTER in the MAINTENANCE section of this manual.
NOTE: The clogged filter light also comes on when the hopper door is closed and the vacuum fan is on.
HOPPER DOOR CLOSED LIGHT (OPTION) The hopper door closed light comes on when the hopper door is closed.
Make sure the hopper door is open all the way and the hopper door closed light is off, before sweeping.

OPERATION

6400 MM430 (6–00)

17

OPERATION
HYDRAULIC FILTER BYPASS LIGHT (OPTION) The hydraulic filter bypass light comes on when the hydraulic filter is clogged. If this light comes on, have the hydraulic filter and hydraulic fluid changed as soon as possible.
FUEL LEVEL GAUGE The fuel level gauge indicates how much fuel is in the fuel tank.

ENGINE CHOKE KNOB The engine choke knob controls the engine choke on gasoline powered machines. On: For cold starting, pull the engine choke knob out. Off: Push the engine choke knob in.
18

6400 MM430 (6–99)

STEERING WHEEL The steering wheel controls the machine’s direction. The machine is very responsive to the steering wheel movements. Left: Turn the steering wheel to the left. Right: Turn the steering wheel to the right.
HOURMETER The hourmeter records the number of hours the machine has been operated. The hourmeter displays the number of hours in tenths of an hour. Use this information to determine machine maintenance intervals.
STEERING WHEEL TILT HANDLE The steering wheel tilt handle controls the angle of the steering wheel. Adjust: Pull out the tilt handle, move the steering wheel up or down, and release the tilt handle.
IGNITION SWITCH The ignition switch starts and stops the engine with a key.
FOR SAFETY: When starting machine, keep foot on brake and directional pedal in neutral. Start: Turn the key all the way clockwise. Release the key as soon as the engine starts. Stop: Turn the key counterclockwise.
6400 MM430 (9–96)

OPERATION
19

OPERATION
HORN BUTTON The horn button operates the horn. Sound: Press the button.
SIDE BRUSH LEVER The side brush lever controls the position and rotation of the side brush. Side brush down and on: Pull the lever back and to the left into the Side brush down and on position. The brush will automatically start rotating. Side brush up and off: Pull the lever back and to the right into the Side brush up and off position.
OPERATING LIGHTS SWITCH (OPTION) The operating lights switch powers on and off the headlights and taillights option. On: Press the top of the operating lights switch. Off: Press the bottom of the operating lights switch.
OPERATING/HAZARD LIGHTS SWITCH (OPTION) The operating/hazard lights switch powers on and off the headlights and taillights option and the hazard light option. Operating lights on: Press the top of the operating/hazard lights switch. Operating/Hazard lights on: Press the bottom of the operating/hazard lights switch. Off: Place operating/hazard lights switch in the middle position.
20

6400 MM430 (9–96)

SIDE BRUSH DOWN PRESSURE KNOB The side brush down pressure knob changes the side brush contact with the sweeping surface.
Increase: Turn the side brush down pressure knob counterclockwise.
Decrease: Turn the side brush down pressure knob clockwise.

CIRCUIT BREAKERS
The circuit breakers are resetable electrical circuit protection devices. Their design stops the flow of current in the event of a circuit overload. Once a circuit breaker is tripped, it must be reset manually. Press the reset button after the breaker has cooled down.
If the overload that caused the circuit breaker to trip is still there, the circuit breaker will continue to stop current flow until the problem is corrected.
The circuit breakers are located in the operator compartment.
The chart lists the circuit breakers and the electrical components they protect.

Circuit Breaker CB-1 CB-2
CB-3 CB-4 CB-5

Rating 15 A 15 A
15 A 15 A 15 A

Circuit Protected Thermo Sentryt Hourmeter, engine, fuel level Hopper, brushes Operating lights Horn

OPERATION

6400 MM430 (9–96)

21

OPERATION
OPERATOR SEAT The operator seat is a fixed back style with a forward-backward adjustment. Adjust: Pull the lever in, slide the seat backward or forward to the desired position, and release the lever.
DELUXE SUSPENSION SEAT (OPTION) The deluxe suspension seat has three adjustments. The adjustments are for the operator’s weight, backrest angle, and the front-to-rear seat position. The operator’s weight adjustment lever controls the seat weight adjustment. The lever has three positions: lightweight, middleweight, and heavyweight. Adjust: Pull the lever up for the lightweight position, move the lever to the middle position for middleweight, and push the lever down for the heavyweight position. The backrest angle knob adjusts the backrest angle. Adjust: Turn the angle knob clockwise to decrease the angle of the backrest. Turn the knob counterclockwise to increase the angle of the backrest.
The seat front-to-rear position lever adjusts the seat position.
Adjust: Pull the lever out, slide the seat backward or forward to the desired position and release the lever.
22

350015
07795
07796
07797
6400 MM430 (9–96)

HOPPER SUPPORT BAR
The hopper support bar is located on the operator’s side of the hopper lift arms. The hopper support bar holds the hopper in the raised position to allow work under the hopper. DO NOT rely on the machine hydraulic system to keep the hopper raised.
WARNING: Raised hopper may fall. Engage hopper support bar.

OPERATION

6400 MM430 (9–96)

23

OPERATION
HOW THE MACHINE WORKS The steering wheel controls the direction of machine travel. The directional pedal controls the speed and forward/reverse direction. The brake pedal slows and stops the machine. The side brush sweeps debris into the path of the main sweeping brush. The main brush sweeps debris from the floor into the hopper. The vacuum system pulls dust and air through the hopper and the hopper dust filter. When sweeping is finished, clean the hopper dust filter and empty the hopper.
PRE-OPERATION CHECKLIST – Check under the machine for leaks (fuel, oil).
– Check the engine air filter.

24

6400 MM430 (9–96)

– Check the engine oil level. – Check the fuel level.

OPERATION

– Check the brakes and steering for proper operation.

6400 MM430 (9–96)

25

OPERATION
CHANGING AN LPG FUEL TANK 1. Park the machine in a designated safe area. 2. Close the tank service valve on the LPG tank located under the operator seat. 3. Operate the engine until it stops from lack of fuel, then set the machine parking brake. FOR SAFETY: When servicing machine, keep flames and sparks away from fuel system service area. Keep area well ventilated.
4. Put on gloves and remove the quick-disconnect tank coupling.
5. Unlatch and remove the empty LPG fuel tank from the machine and store the tank in a designated, safe area.
6. Carefully put the filled LPG tank in the machine so that the tank centering pin enters the aligning hole in the tank collar. Make sure the tank lies flat and inside the support panel.
NOTE: Make sure the LPG fuel tank matches the fuel system (liquid tank with liquid system).
7. Fasten the tank hold-down clamp to lock the tank in position.
26

350412 350412 350412
6400 MM430 (6–01)

8. Connect the LPG fuel line to the tank service coupling. Make sure the service coupling is clean and free of damage. Also make sure it matches the machine service coupling.
9. Open the tank service valve slowly and check for leaks. Close the service valve immediately if an LPG leak is found, and tell the appropriate personnel.

OPERATION
350412 350412

6400 MM430 (9–96)

27

OPERATION
STARTING THE MACHINE 1. LPG powered machines: Open the liquid service valve slowly.
NOTE: Opening the service valve too quickly may cause the service check valve to stop the flow of LPG fuel. If the check valve stops the fuel flow, close the service valve, wait a few seconds and open the valve slowly again.
2. Sit in the operator’s seat and engage the brakes with the directional pedal in neutral. FOR SAFETY: When starting machine, keep foot on brake and directional pedal in neutral.
3. Move the throttle lever forward three fourth of the way toward the Idle engine speed position.
4. On gasoline powered machines, pull out the choke knob when the engine is cold. Push in the choke knob after the engine is running smoothly.
28

350412
6400 MM430 (6–99)

5. Turn the ignition switch key clockwise until the engine starts.
NOTE: Do not operate the starter motor for more than 10 seconds at a time or after the engine has started. Allow the starter to cool between starting attempts or damage to the starter motor may occur.
6. Allow the engine and hydraulic system to warm up three to five minutes. WARNING: Engine emits toxic gases. Severe respiratory damage or asphyxiation can result. Provide adequate ventilation. Consult with your regulatory authorities for exposure limits. Keep engine properly tuned.
7. Move the throttle lever forward into the Fast engine speed position.
8. Release the machine parking brake.
9. Drive the machine to the area to be cleaned.
6400 MM430 (9–96)

OPERATION
29

OPERATION
SWEEPING AND BRUSH INFORMATION
Pick up oversized debris before sweeping. Flatten or remove bulky cartons from aisles before sweeping. Pick up pieces of wire, twine, string, etc., which could become entangled in the brush or brush plugs.
NOTE: Debris can be placed in the hopper through the hopper access door on the front of the hopper.
Plan the sweeping in advance. Try to arrange long runs with minimum stopping and starting. Sweep debris from very narrow aisles into the main aisles ahead of time. Do an entire floor or section at one time. Drive the straightest path possible. Avoid bumping into posts or scraping the sides of the machine. Overlap the brush paths.
Avoid turning the steering wheel too sharply when the machine is in motion. The machine is very responsive to the movement of the steering wheel. Avoid sudden turns, except in emergencies.
For best results, use the correct brush type for your sweeping application. The following are recommendations for main sweeping and side brush applications.
Polypropylene 8-double row main brush -Superior pick-up of sand, gravel, and paper litter. Polypropylene retains its stiffness when wet and can be used indoors or outdoors with equal performance. Not recommended for high- temperature debris.
Polypropylene and wire 8-double row main brush — The wire bristles loosen slightly packed soilage and heavier debris. The polypropylene bristles sweep up the debris with excellent hopper loading.
Polyester 8-double row main brush — Polyester combines the durability of nylon with the moisture resistance of polypropylene.
Polyester 24-single row main brush — Polyester combines the durability of nylon with the moisture resistance of polypropylene. This high density brush is recommended for applications that sweep heavy accumulations of fine dust, sand or other similar material.
Natural Fiber 8- double row main brush — The natural choice for cleaning fine debris on carpet and sweeping very heavy dust and other fine particles on hard surfaces.
30

6400 MM430 (6–01)

Polypropylene Side Brush — A good general purpose brush for sweeping of light to medium debris in both indoor and outdoor applications. This brush is recommended when bristles may get wet. Nylon Side Brush — A longer life, general purpose brush that is recommended for rough surfaces. Flat Wire Side Brush — Recommended for outside and curb-side sweeping where soilage is heavy or compacted. The stiff wire bristles dig out soilage. This brush is also recommended for foundry sweeping where heat may melt synthetic bristles.
SWEEPING
1. Move the throttle lever all the way forward into the Fast engine speed position.
2. Push the hopper door lever forward into the Hopper door open position to open the hopper door.
NOTE: If the machine is equipped with the hopper door closed light option, the light will be off when the hopper door is open.

OPERATION

6400 MM430 (9–96)

31

OPERATION
3. Move the vacuum and filter shaker lever to the Vacuum fan on position.
4. Lower and start the main brush with the main brush lever.
5. Lower and start the side brush with the side brush lever.
6. Sweep as needed.

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6400 MM430 (9–96)

STOP SWEEPING 1. Raise and stop the side brush with the side brush lever.
2. Raise and stop the main brush with the main brush lever.
3. Shake the dust filter by holding the vacuum and filter shaker lever in the Filter shaker position for 30 seconds.

OPERATION

6400 MM430 (9–96)

33

OPERATION
EMPTYING THE HOPPER
1. Stop sweeping.
2. Pull and hold the hopper door lever back into the Hopper door close position until the hopper door is closed. Then release the hopper door lever.
NOTE: If the machine is equipped with the hopper door closed light option, the light will come on when the hopper door is closed.
3. Slowly drive the machine to the debris site or debris container.
4. Pull and hold the hopper lever back into the Hopper up position to raise the hopper to the desired height. Release the hopper lever into the Hold position.
FOR SAFETY: When using machine, make sure adequate clearance is available before raising hopper.
NOTE: Be aware that the minimum ceiling height needed to high dump the hopper is 2340 mm (92 in).
FOR SAFETY: When using machine, move machine with care if hopper is raised.
5. Drive the machine up to the debris container. Position the hopper over the debris container.
6. Move the vacuum and filter shaker lever into the Vacuum fan off position.

34

6400 MM430 (12–96)

7. Push the hopper door lever forward into the Hopper door open position to open the hopper door.
NOTE: If the machine is equipped with the hopper door closed light option, the light will be off when the hopper door is open.
8. Pull the hopper door lever back into the Hopper door close position to close the hopper door after the hopper is empty.
NOTE: If the machine is equipped with the hopper door closed light option, the light will come on when the hopper door is closed.
9. Slowly back the machine away from the debris site or debris container. FOR SAFETY: When using machine, use care when reversing machine.
10. Push and hold the hopper lever forward into the Hopper down position to lower the hopper. Release the hopper lever into the Hold position.
11. Push the hopper door lever forward into the Hopper door open position to open the hopper door.
NOTE: If the machine is equipped with the hopper door closed light option, the light will be off when the hopper door is open.
6400 MM430 (9–96)

OPERATION
35

OPERATION
12. Move the vacuum and filter shaker lever into the Vacuum fan on position.
STOP THE MACHINE 1. Stop sweeping. 2. Take your foot off the directional pedal. Step on the brake pedal.
3. Move the throttle lever back into the Idle engine speed position.
4. Set the machine parking brake.
36

6400 MM430 (9–96)

5. Turn the ignition switch key counterclockwise to stop the engine. Remove the switch key. FOR SAFETY: Before leaving or servicing machine, stop on level surface, set parking brake, turn off machine, and remove key.
6. LPG powered machines: Close the LPG tank’s liquid service valve.

OPERATION
350412

6400 MM430 (9–96)

37

OPERATION
POST-OPERATION CHECKLIST Check this list of items after you have finished sweeping:
– Check the brush adjustments. See TO CHECK AND ADJUST MAIN BRUSH PATTERN and SIDE BRUSH in the MAINTENANCE section of this manual.
– Check the brush skirts for damage, wear, and adjustment.
– Check for wire or string tangled on the main brush and side brush.
– LPG powered machine: Check to make sure the LPG tank service valve is closed.
– Check for fuel odor that indicates a fuel leak. – Check under the machine for leak spots (fuel,
oil, coolant). – Check the service records to determine
maintenance requirements.
38

350412
6400 MM430 (9–96)

ENGAGING HOPPER SUPPORT BAR 1. Set the machine parking brake. FOR SAFETY: When starting machine, keep foot on brake and directional pedal in neutral.
2. Start the engine.
3. Move the throttle lever all the way forward into the Fast engine speed position.
4. Pull and hold the hopper lever back into the Hopper up position to raise the hopper. Release the hopper lever into the Hold position. FOR SAFETY: When using machine, make sure adequate clearance is available before raising hopper.
NOTE: Be aware that the minimum ceiling height needed to high dump the hopper is 2340 mm (92 in).
6400 MM430 (9–96)

OPERATION
39

OPERATION
5. Lower and position the hopper support bar onto the support bar stop. WARNING: Raised hopper may fall. Engage hopper support bar.
6. Slowly lower the hopper so the hopper support bar rests on the support bar stop. WARNING: Lift arm pinch point. Stay clear of hopper lift arms.
7. Move the throttle lever back into the Idle engine speed position.
8. Shut the engine off.

40

6400 MM430 (9–96)

DISENGAGING HOPPER SUPPORT BAR 1. Start the engine. FOR SAFETY: When starting machine, keep foot on brake and directional pedal in neutral.
2. Move the throttle lever all the way forward into the Fast engine speed position.
3. Pull and hold the hopper lever back into the Hopper up position to raise the hopper slightly.
4. Put the support bar in its storage position. WARNING: Lift arm pinch point. Stay clear of hopper lift arms.
6400 MM430 (9–96)

OPERATION
41

OPERATION
5. Lower the hopper.
6. Move the throttle lever back into the Idle engine speed position.
7. Shut the engine off.
OPERATION ON INCLINES Drive the machine slowly on inclines. Use the brake pedal to control machine speed when descending inclines. The maximum rated incline is 8 or 14.1% with a full hopper and 10 or 17.6% with an empty hopper.
FOR SAFETY: When using machine, go slowly on inclines and slippery surfaces.
42

6400 MM430 (9–96)

OPTIONS VACUUM WAND The vacuum wand uses the machine’s vacuum system. The vacuum hose and wand allow pick-up of debris that is out of reach of the machine.
1. Stop the machine within reach of the area to be vacuumed.
2. Set the machine parking brake and turn the engine off.
3. Remove the vacuum wand and hose from the mounting clips.
4. Connect the vacuum hose to the vacuum wand.
5. Remove the plug from the side of the hopper.
6. Connect the other end of the vacuum hose to the hopper hose connector.
7. Start the engine.
6400 MM430 (12–96)

OPERATION
43

OPERATION
8. Move the throttle lever all the way forward into the Fast position.
9. Pull and hold the hopper door lever back into the Hopper door close position until the hopper door is closed.
NOTE: If the machine is equipped with the hopper door closed light option, the light will come on when the hopper door is closed.
10. Move the vacuum and filter shaker lever into the Vacuum fan on position.
11. Vacuum the area as needed. 12. When finished, push the hopper door lever
forward into the Hopper door open position to open the hopper door. 13. Shut the engine off. 14. Remove the vacuum hose from the hopper connection. 15. Replace the plug in the side of the hopper. 16. Disconnect the vacuum hose from the vacuum wand. 17. Put the vacuum wand and hose in the mounting clips.
44

6400 MM430 (12–96)

MACHINE TROUBLESHOOTING

OPERATION

Problem Excessive dusting
Poor sweeping performance

Cause

Remedy

Vacuum fan off

Move vacuum and filter shaker lever to Vacuum fan on position

Brush skirts and dust seals worn, Replace or adjust brush skirts or

damaged, out of adjustment

dust seals

Hopper dust filter clogged

Shake and/or clean or replace dust filter

Vacuum hose damaged

Replace vacuum hose

Vacuum fan failure

Contact TENNANT service personnel

Thermo Sentryt tripped

Reset Thermo Sentryt

Hopper door partially or completely closed

Open hopper door

Brush bristles worn

Replace brushes

Main and side brushes not adjusted properly

Adjust main and side brushes

Debris caught in main brush drive Remove debris from the drive

mechanism

mechanism.

Main brush drive failure

Contact TENNANT service personnel

Side brush drive failure

Contact TENNANT service personnel

Hopper full

Empty hopper

Hopper lip skirts worn or damaged Replace lip skirts

Hopper door partially or completely closed

Open hopper door

Wrong sweeping brush

Contact TENNANT representative for recommendations

Recirculation flap damaged

Replace flap

6400 MM430 (12–96)

45

MAINTENANCE

MAINTENANCE

2

3

45 678

9

1

15 10

14 MAINTENANCE CHART

5

6 7 13 12

11
350158

Interval Daily
25 Hours 50 Hours

Key

Description

3 Engine

5 Brush compartment skirts 11 Hopper lip skirts 8 Main brush
10 Side brush
9 Hopper dust filter 3 Engine 8 Main brush

Procedure

No. of Lubricant/ Service
Fluid Points

Check oil level

EO

1

Check air intake and cooling areas for debris

—

1

Check for damage, wear and adjustment

—

5

Check for damage, wear and adjustment

—

3

Check for damage or wear

—

1

Check brush pattern

—

1

Check for damage or wear

—

1

Check brush pattern

—

1

Shake

—

1

Clean air filter precleaner element

—

1

Rotate end-for-end

—

1

46

6400 MM430 (9–96)

MAINTENANCE

Interval Key

Description

100 Hours 9 Hopper dust filter

14 Hydraulic fluid reservoir 6 Tires

12 Main brush and hopper seals
3 Engine

4 Battery 200 Hours 1 Rear wheel support
bearings 13 Brakes 2 Steering cylinder 3 Vacuum fan belt 11 Side brush guard 7 Hopper lift arm pivots 11 Side brush pivot 400 Hours 6 Front wheel bearings 800 Hours 14 Hydraulic fluid reservoir
15 Hydraulic fluid filter — Hydraulic hoses 2 Propelling motor 2 Rear wheel 3 Engine 4 Battery

Procedure Check for damage, clean or replace Check fluid level Check for damage Check pressure Check for damage or wear
Change oil and filter element Clean or replace spark plugs Clean or replace air filter element Clean cooling fins HCheck electrolyte Lubricate
Check and adjust travel Lubricate Check tension and wear Rotate 90_ Lubricate Check adjustment Check for seal damage Replace filler cap Replace suction strainer Change hydraulic fluid HChange filter element Check for wear and damage HTorque shaft nut HTorque wheel nuts Replace fuel filter HClean and tighten battery cable connections

LUBRICANT/FLUID DW . . . . Distilled water EO . . . . Engine oil, SAE–SG/SH rated HYDO . Tennant or approved hydraulic fluid SPL . . . Special lubricant, Lubriplate EMB grease (TENNANT part no. 01433–1)

No. of Lubricant/ Service
Fluid Points

—

1

HYDO

1

—

3

—

1

—

8

EO

1

—

2

—

1

—

1

DW

1

SPL

2

—

1

SPL

1

—

1

—

1

SPL

2

—

1

—

2

—

1

—

1

HYDO

1

—

1

—

All

—

1

—

1

—

1

—

1

NOTE: Also check procedures indicated (H) after the first 50 hours of operation.

NOTE: More frequent intervals may be required in extremely dusty conditions.

6400 MM430 (9–98)

47

MAINTENANCE
LUBRICATION
ENGINE Check the engine oil level daily. Change the engine oil and oil filter after every 100 hours of machine operation. Use 10W30 SAE–SG/SH rated engine oil. Fill the engine with oil to the level indicated on the oil dipstick. The engine oil capacity is 1.9 L (2 qt) including the oil filter.
REAR WHEEL SUPPORT The rear wheel support pivots the rear wheel. The support has two grease fittings for the bearings. The rear wheel support bearings must be lubricated every 200 hours of operation. Use Lubriplate EMB grease (Tennant part no. 01433–1).
STEERING CYLINDER The steering cylinder has one grease fitting on the rear wheel support end of the cylinder. Lubricate with Lubriplate EMB grease (Tennant part number 01433–1) after every 200 hours of machine operation.

48

6400 MM430 (9–98)

FRONT WHEEL BEARINGS Inspect the front wheel bearings for seal damage after every 400 hours of operation. Replace bearings when necessary.
HOPPER LIFT ARM PIVOTS The hopper lift arms have two grease fittings, one on each lift arm. Lubricate with Lubriplate EMB grease (Tennant part number 01433–1) after every 200 hours of machine operation.

MAINTENANCE

6400 MM430 (9–96)

49

MAINTENANCE
HYDRAULICS
HYDRAULIC FLUID RESERVOIR The reservoir is located in the engine compartment.
A filler cap is mounted on top of the reservoir. It has a built-in breather and fluid level dipstick. Replace the cap after every 800 hours of operation.
Check the hydraulic fluid level at operating temperature after every 100 hours of operation. Make sure the hopper is down when checking hydraulic fluid level. The end of the dipstick is marked with FULL and ADD levels to indicate the level of hydraulic fluid in the reservoir.
Lubricate the filler cap gasket with a film of hydraulic fluid before putting the cap back on the reservoir.
ATTENTION! Do not overfill the hydraulic fluid reservoir or operate the machine with a low level of hydraulic fluid in the reservoir. Damage to the machine hydraulic system may result.
Drain and refill the hydraulic fluid reservoir with new hydraulic fluid after every 800 hours of operation.
The hydraulic fluid filter is located under the engine compartment. Replace the filter element after every 800 hours of operation.
NOTE: If the machine is equipped with the hydraulic filter bypass light option, and the light comes on, replace the filter as soon as possible.
The reservoir has a built-in strainer outlet that filters hydraulic fluid before it enters the system. Replace the strainer after every 800 hours of operation.
HYDRAULIC FLUID The quality and condition of the hydraulic fluid play a very important role in how well the machine operates. Tennant’s hydraulic fluid is specially selected to meet the needs of Tennant machines.
50

6400 MM430 (12–96)

Tennant’s hydraulic fluids provide a longer life for the hydraulic components. There are two fluids available for different temperature ranges:

Tennant hydraulic fluid

Part number

Ambient temperature

65869

above 7 C (45 F)

65870

below 7 C (45 F)

The higher temperature fluid has a higher viscosity and should not be used at the lower temperatures. Damage to the hydraulic pumps may occur because of improper lubrication.

The lower temperature fluid is a thinner fluid for colder temperatures.

If a locally available hydraulic fluid is used, make sure the specifications match Tennant hydraulic fluid specifications. Using substitute fluids can cause premature failure of hydraulic components.

ATTENTION! Hydraulic components depend on system hydraulic fluid for internal lubrication. Malfunctions, accelerated wear, and damage will result if dirt or other contaminants enter the hydraulic system.

HYDRAULIC HOSES Check the hydraulic hoses after every 800 hours of operation for wear or damage.
Fluid escaping at high pressure from a very small hole can be almost invisible, and can cause serious injuries.
See a doctor at once if injury results from escaping hydraulic fluid. Serious infection or reaction can develop if proper medical treatment is not given immediately.
FOR SAFETY: When servicing machine, use cardboard to locate leaking hydraulic fluid under pressure.
If you discover a fluid leak, contact your mechanic or supervisor.

PROPELLING MOTOR
Torque the shaft nut to 270 Nm (200 ft lb) after the first 50 hours of operation and after every 800 hours thereafter.

6400 MM430 (12–96)

MAINTENANCE
00002
51

MAINTENANCE
ENGINE
COOLING SYSTEM Maintaining cooling system efficiency is important. Engine temperatures must be brought up to and maintained within the satisfactory range for efficient operation. However, the engine must be kept from overheating in order to prevent damage to the valves, pistons, and bearings. Check the air intake and cooling areas for debris, clean if necessary.
Clean the cooling fins and external surfaces after every 100 hours of operation by removing the blower housing and cooling shrouds. Make sure the cooling shrouds are reinstalled.
FOR SAFETY: When servicing machine, wear eye and ear protection if using pressurized air or water.
AIR FILTER The engine air filter is made up of two parts, a precleaner element and the air filter element. The precleaner element must be cleaned and re–oiled after after every 25 hours of operation. The air filter element should be cleaned or replaced after after every 100 hours of operation. The filter element must be replaced if it is damaged or has been cleaned three times.
To clean the filter elements, remove the air filter cover. Remove the precleaner element, wash in liquid detergent and water, and squeeze it dry in a cloth. Remove the air filter element nut and inner cover, then remove the air filter element. Carefully clean the covers and the interior of the housing with a damp cloth. Clean the housing sealing surfaces.
Using an air hose, direct clean, dry air, maximum 205 kPa (30 psi), up and down the pleats on the inside of the element. Do not rap, tap or pound dust out of the element.
FOR SAFETY: When servicing machine, wear eye and ear protection if using pressurized air or water.
52

6400 MM430 (6–99)

After cleaning the air filter element, inspect it for damage by placing a bright light inside. The slightest rupture requires replacement of the element. Inspect the seals on the ends of the element. They should be flexible and undamaged. Oil the precleaner element with 30 cc (1 oz) of clean engine oil. Squeeze precleaner element to distribute the oil evenly throughout the foam.
FUEL FILTER The fuel filter traps fuel contaminants. The filter is located on the fuel line near the fuel tank. Replace the fuel filter after every 800 hours of operation.
CARBURETOR The carburetor is designed to deliver the correct fuel-to-air mixture to the engine under all operating conditions. The high idle is set at the factory and cannot be adjusted. The low idle fuel adjusting needle is also set at the factory and normally does not need adjustment.
FOR SAFETY: When servicing machine, allow engine to cool. Keep flames and sparks away from fuel system service area. Keep area well ventilated. If the engine is hard-starting or runs roughly or stalls at low idle speed, it may be necessary to adjust or service the carburetor.
SPARK PLUGS Clean, or replace, and set the gap of the spark plugs after every 100 hours of operation. The proper spark plug gap is 1 mm (0.040 in).
6400 MM430 (6–99)

MAINTENANCE
53

MAINTENANCE
ELECTRICAL
BATTERY The battery for the machine is a low maintenance battery. Do not add water to the battery, or remove the battery vent plugs. The battery is located in the engine compartment. After the first 50 hours of operation, and after every 800 hours after that, clean and tighten the battery connections. Check the battery electrolyte level after every 100 hours of operation.
FOR SAFETY: When servicing machine, avoid contact with battery acid.
BELTS AND CHAINS
VACUUM FAN BELT Check the vacuum fan belt tension and wear after every 200 hours of operation. The correct tension is when the belt deflects 6 mm (0.25 in) from a force of 0.7 kg (1.5 lb) at belt midpoint.
WARNING: Moving belt and fan. Keep away.
STATIC DRAG CHAIN A static drag chain prevents the buildup of static electricity in the machine. The chain is attached to the machine by a rear main brush skirt retaining bolt. Make sure the chain is touching the floor at all times.
54

6400 MM430 (6–99)

DEBRIS HOPPER
HOPPER DUST FILTER The dust filter filters the air pulled up from the hopper. The dust filter is equipped with a shaker to remove the accumulated dust particles. The dust filter shaker is operated by the vacuum and filter shaker lever.
The standard dust filter works well for normal sweeping applications. The synthetic filter works well for humid or wet applications.
Shake the dust filter before emptying the hopper and at the end of every work shift. Check and clean or replace the dust filter after every 100 hours of operation.
To clean the dust filter, use one of the following methods:
D SHAKING — Move the vacuum and filter shaker lever to the Filter shaker position.
D TAPPING — Tap the filter gently on a flat surface with the dirty side down. Do not damage the edges of the filter element and seals, or the filter will not seat properly in the filter frame.
D AIR — Always wear eye protection when using compressed air. Blow air through the dust filter opposite the direction of the arrows. Never use more than 690 kPa (100 psi) of air pressure and never closer than 50 mm (2 in) away from the filter. This may be done with the dust filter in the machine.
FOR SAFETY: When servicing machine, wear eye and ear protection if using pressurized air or water.
D WATER — Rinse the synthetic filter with a low pressure garden hose through the dust filter opposite the direction of the arrows. The standard dust filter can also be rinsed, but the filter will degrade with each rinsing and should be replaced after rinsing five times.
NOTE: Be sure the dust filter is completely dry before reinstalling it in the machine.
6400 MM430 (9–02)

MAINTENANCE
55

MAINTENANCE
REMOVING HOPPER DUST FILTER 1. Stop the engine and set the machine parking brake. FOR SAFETY: Before leaving or servicing machine, stop on level surface, set parking brake, turn off machine, and remove key. 2. Unlatch and open the hopper cover. Support the hopper with the hopper cover prop rod.
3. Lift the dust filter element out of the hopper insert.
4. Clean or discard the dust filter as required. 5. Clean and inspect the filter sealing surfaces.
Make sure the foam element centering strips attached to the hopper are intact. Put the cleaned or new dust filter in the hopper insert with the arrows pointing up. 6. Lower the hopper cover support and close the hopper cover. Latch the hopper cover.
56

6400 MM430 (9–02)

BRUSHES
MAIN BRUSH The main brush is cylindrical and spans the width of the machine, sweeping debris into the hopper.
Check the brush daily for wear or damage. Remove any string or wire tangled on the main brush, main brush drive hub, or main brush idler hub.
Check the main brush pattern daily. The pattern should be 50 to 75 mm (2 to 3 in) wide with the main brush in the lowered position. Adjust the main brush pattern by turning the main brush down pressure knob and moving the brush stop.
Rotate the main brush end-for-end after every 50 hours of operation for maximum brush life and best sweeping performance.
Replace the main brush when the remaining bristles measure 25 mm (1 in) in length.
REPLACING MAIN BRUSH 1. Stop the machine, set the parking brake and turn the engine off.
FOR SAFETY: Before leaving or servicing machine, stop on level surface, set parking brake, turn off machine, and remove key.
2. Lower the main brush.
3. Open the right side main brush access door.
4. Loosen the idler arm mounting T–bolt. Remove the brush idler arm assembly.
5. Grasp the main brush; pull it off the brush drive plug and out of the main brush compartment.
6. Put the new or rotated end-for-end main brush on the floor next to the access door.
7. Slide the main brush onto the drive plug. Rotate the brush until it engages the drive plug, and push it all the way onto the plug.
8. Slide the main brush idler arm plug onto the main brush.
6400 MM430 (12–96)

MAINTENANCE
57

MAINTENANCE
9. Secure the idler arm on the pins. Hand tighten the mounting T–bolt.
10. Close the main brush access door.
CHECKING AND ADJUSTING MAIN BRUSH PATTERN
1. Apply chalk, or some other material that will not blow away easily, to a smooth, level floor.
2. Raise the side brush and main brush and position the main brush over the chalked area.
3. Lower the main brush for 15 to 20 seconds while keeping a foot on the brakes to keep the machine from moving.
NOTE: If chalk or other material is not available, allow the brushes to spin on the floor for two minutes. A polish mark will remain on the floor.
4. Raise the main brush. 5. Drive the machine off of the test area. 6. Observe the width of the brush pattern. The
proper brush pattern width is 50 to 75 mm (2 to 3 in).
00582

58

6400 MM430 (9–96)

7. To increase the width of the main brush pattern, move the main brush down pressure knob forward, away from the operator. To decrease the width of the main brush pattern, move the main brush down pressure knob backward, towards the operator.
The brush taper is factory set and should not need adjustment unless parts of the brush system have been replaced. If the main brush pattern is tapered, more than 15 mm (0.5 in) on one end than the other, adjust the taper as follows:
A. Loosen the brush shaft bearing bracket mounting bolts.
B. Move the brush shaft bearing bracket up or down in the slots.
C. Check the main brush pattern and readjust as necessary. Then adjust the width of the main brush pattern.

MAINTENANCE
00601

6400 MM430 (9–96)

59

MAINTENANCE
SIDE BRUSH The side brush sweeps debris along edges into the path of the main brush.
Check the brush daily for wear or damage. Remove any string or wire found tangled on the side brush or side brush drive hub.
Check the side brush pattern daily. The side brush bristles should contact the floor in a 10 o’clock to 3 o’clock pattern when the brush is in motion. Adjust the side brush pattern by the side brush down pressure knob. Turn the knob counterclockwise to increase the brush contact with the sweeping surface and clockwise to decrease the brush contact with the sweeping surface.
The side brush should be replaced when it no longer sweeps effectively for your application. A guideline length is when the remaining bristles measure 50 mm (2 in) in length. You may need to replace the side brush sooner if you are sweeping light litter or use a brush with shorter bristles if you are sweeping heavy debris.
REPLACING SIDE BRUSH 1. Stop the machine, set the parking brake and turn the engine off.
FOR SAFETY: Before leaving or servicing machine, stop on level surface, set parking brake, turn off machine, and remove key.
2. Remove the side brush retaining pin from the side brush drive shaft by pulling the pin keeper off over the end of the pin.
3. Slide the side brush off the side brush drive shaft.
NOTE: Remove the drive hub and put it on the new brush if one is not installed.
4. Slide the new side brush onto the side brush drive shaft.
5. Insert the side brush retaining pin through the side brush hub and shaft.
6. Secure the pin by clipping the pin keeper over the end of the pin.
7. Adjust the side brush pattern with the side brush down pressure knob.
60

350327
08019
6400 MM430 (12–96)

SIDE BRUSH GUARD Rotate the side brush guard 90_ after every 200 hours of operation, or sooner if worn. Replace the brush guard after using all four sides.
SIDE BRUSH PIVOT The side brush pivot should be checked for excessive movement after every 200 hours of operation. Torque the front and rear compression springs to reduce excessive movement.

MAINTENANCE
08049

The side brush tilt is adjusted with the side brush cable. Turn the clevis on the cable to get the desired side brush pattern.

6400 MM430 (9–96)

61

MAINTENANCE
SKIRTS AND SEALS
HOPPER LIP SKIRT The hopper lip skirt is located on the bottom rear of the hopper. The skirt floats over debris and helps deflect that debris into the hopper. Check the hopper lip skirt for wear or damage daily. Replace the hopper lip skirt when it no longer touches the floor.
HOPPER SIDE SKIRT The hopper side skirt is located on the left side of the hopper. The hopper side skirt should clear the floor by 3 mm (0.12 in). Check the hopper side skirt for wear or damage and adjustment daily.
BRUSH DOOR SKIRTS The brush door skirts are located on the bottom of each of the two main brush doors. The skirt should clear the floor by 3 to 6 mm (0.12 to 0.25 in). Check the skirts for wear or damage and adjustment daily. NOTE: The brush door skirts have slotted holes to allow for a ground clearance adjustment. Adjust the skirt height with the door closed. NOTE: Rear tire pressure will affect skirt clearances.
62

6400 MM430 (9–96)

REAR SKIRTS The two rear skirts are located on the bottom rear of the main brush compartment. The vertical skirt should clear the floor up to 5 mm (0.25 in). The recirculation skirt requires no adjustment. Check the skirts for wear or damage and adjustment daily. NOTE: Rear tire pressure will affect skirt clearances.
SIDE BRUSH DUST CONTROL SKIRTS (OPTION) The side brush dust control skirts wrap around the side brush and the front bumper. Check the side brush dust control skirts for wear or damage daily.
BRUSH DOOR SEALS The brush door seals are located on both main brush doors and on corresponding portions of the main frame. Check the seals for wear or damage after every 100 hours of operation.
HOPPER SEALS The hopper seals are located on the top and side portions of the machine frame that contact the hopper. Check the seals for wear or damage after every 100 hours of operation.
6400 MM430 (9–97)

MAINTENANCE
63

MAINTENANCE
HOPPER ACCESS DOOR SEAL The hopper access door seal is located on the hopper and seals the front of the debris hopper. Check the seal for wear or damage after every 100 hours of operation.
HOPPER DOOR SEALS The hopper door seals are located on the hopper door. They seal the hopper when the hopper door is closed. Check the seals for wear or damage after every 100 hours of operation.
VACUUM FAN SEAL The vacuum fan seal is mounted on the vacuum shut-off plate. Check the seal for wear or damage after every 100 hours of operation.

64

6400 MM430 (9–96)

BRAKES AND TIRES
BRAKES The mechanical brakes are located on the front wheels. The brakes are operated by the foot brake pedal and connecting rods.
Check the brake adjustment after every 200 hours of operation.
TIRES The standard front machine tires are solid. The standard rear machine tire is pneumatic.
Check the front tires after every 100 hours of operation for damage. Check the rear tire pressure after every 100 hours of operation. The proper tire pressure is 795 kPa (115 psi).

MAINTENANCE

REAR WHEEL

Torque the rear wheel nuts twice in the pattern

shown to 122 to 155 Nm (90 to 110 ft lb) after the

first 50 hours of operation, and every 800 hours of

4

operation.

1

2 5
3

6400 MM430 (6–01)

65

MAINTENANCE
PUSHING, TOWING, AND TRANSPORTING THE MACHINE
PUSHING OR TOWING THE MACHINE If the machine becomes disabled, it can be pushed from the front or rear, but towed only from the rear.
The propelling pump has a bypass valve to prevent damage to the hydraulic system when the machine is being pushed or towed. This valve allows a disabled machine to be moved for a very short distance and at a speed to not exceed 1.6 kp/h (1 mph). The machine is NOT intended to be pushed or towed a long distance or at a high speed.
ATTENTION! Do not push or tow machine for a long distance and without using the bypass valve, or the machine hydraulic system may be damaged.
Turn the bypass valve 90_ from the normal position before pushing or towing the machine. The illustration shows the bypass valve in the pushing or towing position.

66

6400 MM430 (6–00)

TRANSPORTING THE MACHINE 1. Position the rear of the machine at the loading edge of the truck or trailer. FOR SAFETY: Use truck or trailer that will support the weight of the machine.
NOTE: Empty the hopper before transporting the machine.
2. If the loading surface is not horizontal or is higher than 380 mm (15 in) from the ground, use a winch to load machine. If the loading surface is horizontal AND is 380 mm (15 in) or less from the ground, the machine may be driven onto the truck or trailer.
3. To winch the machine onto the truck or trailer, attach the winching chains to the rear tie down locations. The rear tie-down locations are the holes in the sides of the machine frame near the rear bumper.
4. Turn the bypass valve 90_ from the normal position before winching the machine onto the truck or trailer. See PUSHING OR TOWING THE MACHINE section of this manual. Make sure the machine is centered. FOR SAFETY: When loading machine onto truck or trailer, use winch. Do not drive the machine onto the truck or trailer unless the loading surface is horizontal AND is 380 mm (15 in) or less from the ground.
6400 MM430 (6–00)

MAINTENANCE
67

MAINTENANCE
5. Position the machine onto the truck or trailer as far as possible. If the machine starts to veer off the centerline of the truck or trailer, stop and turn the steering wheel to center the machine.
6. Set the parking brake and block the machine tires. Tie down the machine to the truck or trailer before transporting. The front tie-down locations are the holes in the wheel pockets at the front of the machine frame.
The rear tie-down locations are the holes in the sides of the machine frame near the rear bumper.
7. If the loading surface is not horizontal or is higher than 380 mm (15 in) from the ground, use a winch to unload machine. If the loading surface is horizontal AND is 380 mm (15 in) or less from the ground, the machine may be driven off the truck or trailer. FOR SAFETY: When unloading machine off truck or trailer, use winch. Do not drive the machine off the truck or trailer unless the loading surface is horizontal AND 380 mm (15 in) or less from the ground.
68

6400 MM430 (NIL)

MACHINE JACKING
Empty the hopper before jacking the machine. The machine can be raised for service at the designated locations. Use a hoist or jack that will support the weight of the machine. Always stop the machine on a flat, level surface and block the tires before jacking up the machine.
FOR SAFETY: Before leaving or servicing machine, stop on level surface, set parking brake, turn off machine, and remove key.
The front jacking locations are on the flat bottom edge of the front of the machine frame next to the front tires.

MAINTENANCE

The rear jacking location is the center of the rear bumper.
FOR SAFETY: When servicing machine, block machine tires before jacking up machine.
FOR SAFETY: When servicing machine, jack up machine at designated locations only. Block machine up with jack stands.
STORING MACHINE
Before storing the machine for an extended time, the machine needs to be serviced to lessen the chance of rust, sludge, and other undesirable deposits from forming.

6400 MM430 (6–01)

69

SPECIFICATIONS

SPECIFICATIONS

GENERAL MACHINE DIMENSIONS/CAPACITIES
Item Length Length with side brush Width Width with side brush Height Height with overhead guard Track Wheelbase Main sweeping brush diameter Main sweeping brush length Side brush diameter Sweeping path width Sweeping path width with side brush Main sweeping brush pattern width Hopper weight capacity Hopper volume capacity Dust filter area GVWR Ceiling height minimum dumping clearance

Dimension/capacity 2085 mm 2260 mm 1230 mm 1395 mm 1435 mm 2085 mm 1135 mm 1135 mm 355 mm 915 mm 585 mm 915 mm 1270 mm 50 to 75 mm 315 kg 315 L 6.9 m2 1542 kg 2340 mm

(82 in) (89 in) (48.4 in) (55 in) (56.5 in) (82 in) (44.7 in) (44.7 in) (14 in) (36 in) (23 in) (36 in) (50 in) (2 to 3 in) (700 lb) (11.25 ft3) (74 ft2) (3400 lb) (92 in)

GENERAL MACHINE PERFORMANCE
Item Maximum forward speed Maximum reverse speed Minimum aisle turn width, left Minimum turning radius, right Minimum turning radius, left Maximum rated incline with empty hopper Maximum rated incline with full hopper

Measure 9.6 km/h 4.8 km/h 2360 mm 1490 mm 1135 mm 10 / 17.6% 8 / 14.1%

(6 mph) (3 mph) (93 in) (58.7 in) (44.7 in)

70

6400 MM430 (6–00)

POWER TYPE

SPECIFICATIONS

Engine Kohler CH20

Type

Ignition

Piston

Capacitive discharge

Displacement

624 cc (38.1 cu in)

Fuel
Gasoline, 87 octane minimum, unleaded. Fuel tank: 27.6 L (7.3 gal)
LPG, Fuel tank: 15 kg (33 lb)
Idle speed, no load

1200 + 100 rpm Spark plug gap

1 mm (0.040 in)

Cycle Aspiration Cylinders

4

Natural 2

Net power, governed 11.9 kw (16 hp) @ 2800 rpm

Cooling system Air

Bore

Stroke

77 mm 67 mm (3.03 in) (2.64 in)

Net power, maximum

14.9 kw (20 hp) @ 3600 rpm

Electrical system

12 V nominal

25 A alternator

(Fast) governed speed, under load 2750 + 50 rpm Valve clearance, cold
0.038 to 0.076 mm (0.0015 to 0.0030 in) intake 0.050 to 0.088 mm (0.0020 to 0.0035 in) exhaust

Firing order
1–2 Engine lubricating oil with filter 1.9 L (2 qt) 10W30 SAE–SG/SH

STEERING

Type
Rear wheel, hydraulic cylinder and rotary valve controlled

Power source Hydraulic accessory pump

Emergency steering Manual

HYDRAULIC SYSTEM

System Hydraulic reservoir Hydraulic total

Capacity 19.3 L (5.1 gal) 20.8 L (5.5 gal)

Fluid Type TENNANT part no. 65869 — above 7 C (45 F) TENNANT part no. 65870 — below 7 C (45 F)

BRAKING SYSTEM
Type Service brakes Parking brake

Operation Mechanical drum brakes (2), one per front wheel, rod actuated Utilize service brakes, rod actuated

TIRES
Location Front (2) Rear (1)

Type Solid Pnuematic

Size 406 x 89 x 308 (16 x 3 1/2 x 12 1/8) 150/75 R8 10P (16 x 68)

Pressure -795 kPa (115 psi)

6400 MM430 (9–02)

71

SPECIFICATIONS

2085 mm (82 in)

1230 mm (48.4 in)

2085 mm (82 in)

2260 mm (89 in)
TOP VIEW

1395 mm (55 in)

1435 mm (56.5 in)

930 mm

1135 mm (44.7 in)

SIDE VIEW

MACHINE DIMENSIONS

1135 mm (44.7 in) FRONT VIEW
350158— 350165

72

6400 MM430 (6–00)

A
Air filter, 52 Aisle turn, 70
B
Battery, 54 Charging system, Light, 15
Bearings Front wheel, 49 Rear wheel support, 48
Belts, 54 Vacuum Fan, 54
Brake pedal, 12 Brakes, 25, 65
System specifications, 71 Brush door seals, 63 Brush door skirts, 62 Brushes, 30­33, 38, 57­62
Adjusting main brush taper, 59 Checking main brush pattern, 58­60 Checking side brush pattern, 60 Door seals, 63 Door skirts, 62 Main brush, 30, 57­60 Main brush bristle length, 57 Main brush down pressure knob, 14 Main brush lever, 14 Rear skirts, 63 Replacing main brush, 57­59 Replacing side brush, 60 Side brush, 31, 60­62 Side brush bristle length, 60 Side brush down pressure knob, 21 Side brush dust control skirts, 63 Side brush guard, 61 Side brush lever, 20 Side brush pivot, 61 Buttons, Horn, 20 Bypass valve, 66
6400 MM430 (6–00)

INDEX

INDEX

C
Capacities, 70
Carburetor, 53
Chains, 54 Static drag, 54
Changing LPG fuel tank, 26­28
Charging system light, 15
Choke, Engine, 18
Circuit breakers, 21
Clogged filter light, 17
Control panel Clogged filter light, 17 Engine oil pressure, 15 Engine water temperature light, 15 Fuel level gauge, 18 Hopper door closed light, 17 Hopper temperature light, 16 Hourmeter, 19 Hydraulic filter bypass light, 18 LPG fuel level low light, 16 Operating lights switch, 20 Operating/hazard lights switch, 20
Controls, 10 Brake pedal, 12 Charging system light, 15 Circuit breakers, 21 Clogged filter light, 17 Directional pedal, 11 Engine choke knob, 18 Engine oil pressure light, 15 Engine water temperature light, 15 Fuel level gauge, 18 Hopper door closed light, 17 Hopper door lever, 13 Hopper lever, 13 Hopper temperature light, 16 Horn button, 20 Hourmeter, 19 Hydraulic filter bypass light, 18 Ignition switch, 19 LPG fuel level low light, 16 Main brush down pressure knob, 14 Main brush lever, 14 Operating lights switch, 20 Operating/hazard lights switch, 20 Operation, 11 Parking brake pedal, 12 Seat support release lever, 12 Side brush down pressure knob, 21 Side brush lever, 20 Steering wheel, 19 Steering wheel tilt handle, 19

73

INDEX
Controls (continued), 10 Symbols, 8­10 Throttle lever, 13 Vacuum and filter shaker lever, 14
Cooling system, 52
D
Debris hopper, 55­57 Deluxe suspension seat, 22 Dimensions, 70 Directional pedal, 11 Disengaging hopper support bar, 41­43 Doors
Brush Seals, 63 Skirts, 62
Hopper, Seals, 64 Hopper access, Seal, 64 Dust filter, 55­57 Changing, 55­57 Cleaning, 55
E
Electrical, 54 Battery, 54 Circuit breakers, 21 Ignition switch, 19
Emptying the hopper, 34­36 Engaging hopper support bar, 39­41 Engine, 52­55
Air filter, 52 Air filter indicator, 24 Carburetor, 53 Choke, 18 Coolant temperature, Light, 15 Cooling system, 52 Fuel filter, 53 Lubrication, 48 Oil capacity, 48 Oil level, 25 Oil pressure, Light, 15 Spark plugs, 53 Specifications, 71 Engine choke knob, 18 Engine oil pressure light, 15 Engine water temperature light, 15
74

F
Front wheel, Bearings, 49 Front wheel bearings, 49 Fuel, 38 Fuel filter, 53 Fuel level, 25 Fuel level gauge, 18 Fuel tank
Changing LPG, 26­28 LPG fuel level low, Light, 16
G
Gauges, Fuel level, 18 Grease fittings
Hopper lift arm pivots, 49 Rear wheel support, 48 Steering cylinder, 48
H
Hopper Access door seal, 64 Changing dust filter, 55­57 Cleaning dust filter, 55 Clogged filter, Light, 17 Debris, 55­57 Disengaging hopper support bar, 41­43 Door closed, Light, 17 Door lever, 13 Door seals, 64 Dust filter, 55­57 Emptying the hopper, 34­36 Engaging hopper support bar, 39­41 Lever, 13 Lift arm pivots, 49 Lip skirt, 62 Seals, 63 Side skirt, 62 Support bar, 23 Temperature, Light, 16 Thermo Sentry, 14, 16 Vacuum fan seal, 64
6400 MM430 (6–00)

Hopper access door seal, 64 Hopper door closed light, 17 Hopper door lever, 13 Hopper door seals, 64 Hopper lever, 13 Hopper lift arm pivots, 49 Hopper lip skirt, 62 Hopper seals, 63 Hopper side skirt, 62 Hopper support bar, 23 Hopper temperature light, 16 Horn button, 20 Hourmeter, 19 How the machine works, 24 Hydraulic filter bypass light, 18 Hydraulic fluid, 50 Hydraulic fluid reservoir, 50 Hydraulic hoses, 51 Hydraulics, 50­52
Filter bypass light, 18 Fluid, 50­52 Fluid filter, 50 Fluid level, 50 Hoses, 51 Propelling motor, 51 Reservoir, 50 System specifications, 71
I
Ignition switch, 19
J
Jack points, 69 Jacking up the machine, 69
K
Knobs Engine choke, 18 Main brush down pressure, 14 Side brush down pressure, 21
6400 MM430 (6–00)

L
Levers Hopper, 13 Hopper door, 13 Main brush, 14 Seat support release, 12 Side brush, 20 Steering wheel tilt handle, 19 Throttle, 13 Vacuum and filter shaker, 14
Lights Charging system, 15 Clogged filter, 17 Engine oil pressure, 15 Engine water temperature, 15 Hopper door closed, 17 Hopper temperature, 16 Hydraulic filter bypass, 18 LPG fuel level low, 16 Operating lights switch, 20 Operating/hazard lights switch, 20
LPG Changing the fuel tank, 26­28 Fuel level low, Light, 16 Service valve, 38
LPG fuel level low light, 16
Lubrication, 48­50 Engine, 48

INDEX

M
Machine components, 7
Machine dimensions, 72
Machine jacking, 69
Machine leaks, 38
Machine tie down location, 68
Main brush, 30, 57­60 Adjust brush taper, 59 Bristle length, 57 Checking brush pattern, 58­60 Door seals, 63 Door skirts, 62 Down pressure, 14 Lever, 14 Maintenance, 57 Rear skirts, 63 Replacing, 57­59
Main brush down pressure knob, 14
Main brush lever, 14

75

INDEX
Maintenance, 46 Intervals, 46­48 Recommended, 6
Maintenance chart, 46­48 Motors, Propelling, 51
O
Operating lights switch, 20 Operating/hazard lights switch, 20 Operation, 6 Operation on inclines, 42 Operator Responsibility, 6 Operator seat, 22 Options, 43­45
Clogged filter light, 17 Hopper door closed light, 17 Hydraulic filter bypass light, 18 Operating lights switch, 20 Operating/hazard lights switch, 20 Side brush dust control skirts, 63 Vacuum Wand, 43
P
Parking brake pedal, 12 Pedals
Brake, 12 Directional, 11 Parking brake, 12 Pivots Hopper lift arm, 49 Side brush, 61 Post-operation checklist, 38 Pre-operation checklist, 24­26 Propelling motor, 51 Pushing machine, 66 Pushing or towing the machine, 66 Pushing, towing, and transporting machine, 66
76

R
Rear skirts, 63
Rear wheel, 65 Steering cylinder, 48 Support, 48
Rear wheel support, 48 Bearings, 48 Grease fitting, 48
S
Safety Disengaging hopper support bar, 41­43 Engaging hopper support bar, 39­41 Hopper support bar, 23 Labels, 5 Precautions, 3­5
Seals, 62­65 Brush doors, 63 Hopper, 63 Hopper access door, 64 Hopper door, 64 Vacuum fan, 64
Seat Adjustment, 22 Deluxe suspension, 22 Operator, 22
Seat support, Release lever, 12
Seat support release lever, 12
Service records, 38
Side brush, 31, 60­62 Bristle length, 60 Checking brush pattern, 60 Down pressure, 21 Dust control skirts, 63 Guard, 61 Lever, 20 Pivot, 61 Replacing, 60
Side brush down pressure knob, 21
Side brush dust control skirts, 63
Side brush guard, 61
Side brush lever, 20
Side brush pivot, 61
Skirts, 38, 62­65 Brush doors, 62 Hopper Lip, 62 Hopper side, 62 Rear, 63 Side brush dust control, 63
6400 MM430 (6–00)

Spark plugs, 53
Specifications, 70­73 Braking system, 71 Hydraulic system, 71 Machine capacities, 70 Machine dimensions, 70 Machine performance, 70 Power type, 71 Steering, 71 Tires, 71
Starting the machine, 28­30
Static drag chain, 54
Steering, 25 Specifications, 71
Steering cylinder, 48 Grease fitting, 48
Steering wheel, 19
Steering wheel tilt handle, 19
Stop sweeping, 33
Stop the machine, 36­38
Storing machine, 69
Sweeping, 31­33
Sweeping and brush information, 30­33
Switches Ignition, 19 Operating lights, 20 Operating/hazard lights, 20

T
Thermo Sentry, 14, 16 Throttle lever, 13 Tie down location, 68 Tires, 65
Rear wheel, 65 Specifications, 71 Towing machine, 66 Transporting machine, 66 Transporting the machine, 67 Travel speed, 70 Troubleshooting, 45

INDEX

V
Vacuum and filter shaker lever, 14 Vacuum fan
Belt, 54 Seal, 64 Vacuum fan belt, 54 Vacuum fan seal, 64 Vacuum Wand, 43

6400 MM430 (6–00)

77

INDEX

78

6400 MM430 (6–00)

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